ICS9248-146
ICS9248-146 is Frequency Generator & Integrated Buffers manufactured by Integrated Circuit Systems.
Integrated Circuit Systems, Inc.
Frequency Generator & Integrated Buffers for Celeron & PII/III™
Remended Application: Single chip clock solution for SIS630S chipsets. Output Features
:
- 3- CPUs @ 2.5V
- 13
- SDRAM @ 3.3V
- 6- PCI @3.3V,
- 2
- AGP @ 3.3V
- 1- 48MHz, @3.3V fixed.
- 1- 24/48MHz, @3.3V selectable by I2C (Default is 24MHz)
- 2- REF @3.3V, 14.318MHz. Features
:
- Up to 166MHz frequency support
- Support FS0-FS3 trapping status bit for I2C read back.
- Support power management: CPU, PCI, SDRAM stops and Power down Mode form I2C programming.
- Spread spectrum for EMI control (0 to -0.5%, ± 0.25%).
- Uses external 14.318MHz crystal Skew Specifications:
- CPU
- CPU: < 175ps
- SDRAM
- SDRAM < 250ps (except SDRAM12)
- PCI
- PCI: < 500ps
- CPU (early)
- PCI: 1-4ns (typ. 2ns)
Pin Configuration
VDDA
- (AGPSEL)REF0...
